d and f Block ElementshardMCQ MULTIPLE

Investigate the nature of the specific bonds within the permanganate ion (). According to advanced vd and f Block Elements Chemistry Question

Question

Investigate the nature of the specific bonds within the permanganate ion ($MnO_4^-$). According to advanced valence bond theory, which specific overlapping atomic orbitals are primarily responsible for the formation of the vital $\pi$ -bonds?

Answer: A,B

💡 Solution & Explanation

In the tetrahedral permanganate ion, the single bonds ($\sigma$ -bonds) are formed by $d^3s$ hybridization on $Mn$. To neutralize the intense formal charge, multiple bonding occurs. The $\pi$ -bonds are strictly formed by the side-wise overlap of the completely filled $2p$ -orbitals of the Oxygen ligands with the available, energetically accessible, empty $3d$ -orbitals of the highly oxidized $Mn^{7+}$ center ($p\pi-d\pi$ bonding).

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